What is red and smells like blue paint?
How far can you walk into the woods?
What has a bottom at the top?
What part of the chicken has the most feathers?
What is the end of everything?
What does Alexander the Great and Winnie the Pooh have in common?
What has one eye, but can’t see?
What has many teeth, but cannot bite?
What kind of band never plays music?
What can you hold in your right hand, but never in your left hand?
In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki